162 results found
Medical tests
… hormone (ADH) partly controls serum osmolality. Water constantly leaves your body as you breathe, sweat, and urinate. If you do not drink enough water, the concentration of chemicals in your blood … or overhydration. Check to see if your body is making enough antidiuretic hormone (ADH) . Find the cause of …
Medical tests
… gain weight, especially when the child seems to be eating enough food. How To Prepare For 24 hours before a D-xylose … before the test. Do not eat or drink anything except water for 8 to 12 hours before having this test. Children … be allowed to eat until the test is completed. How It Feels Drinking the D-xylose solution can make you feel sick to …
Medical tests
… in the blood reaches its highest level about an hour after drinking. But food in the stomach may increase the amount of … is prohibited—for example, in underage people suspected of drinking or in people enrolled in an alcohol treatment … increases. Your weight. The more you weigh, the more water you have in your body. The water dilutes the alcohol …
Medical tests
… is both an electrolyte and mineral. It helps keep the water (the amount of fluid inside and outside the body's … can be caused by a high-sodium diet or by not drinking enough water and being dehydrated . Dehydration may also be …
Medical tests
… sometimes done if an earlier ultrasound test did not give enough information. How To Prepare If you are breastfeeding, you may want to pump enough breast milk before the test to get through 1 to 2 … The doctor may tell you not to eat or drink anything but water for 4 to 6 hours before the test. Follow all …
Medical tests
… blood test for amylase, do not eat or drink anything except water for at least 2 hours before having the test. For a 24-hour urine test for amylase, be sure to drink enough fluids during the test to prevent dehydration . How … For a 24-hour urine test for amylase, be sure to drink enough fluids during the test to prevent dehydration . How …
Medical tests
… (gastric acid) that helps break down and digest food. When enough gastric acid has been produced by the stomach, … for 4 hours before the test. You can drink as much water as you want up to 1 hour before the test. Be sure to … (gastric acid) that helps break down and digest food. When enough gastric acid has been produced by the stomach, …
Medical tests
… provide the sputum sample. Some people can't cough deeply enough to produce a sample. They can breathe in a special … will tell you how soon before the test to stop eating and drinking. Follow the instructions exactly about when to stop … on the day of surgery, take them with only a sip of water. Tell your doctor if you have recently taken …
Medical tests
… How To Prepare Do not eat or drink anything (other than water) for at least 8 hours before the test. Many medicines … to fill it with blood. Remove the band from your arm when enough blood is collected. Put a gauze pad or cotton ball … use. Having a family history of high homocysteine levels. Drinking more than 2 to 3 cups of coffee a day over many …
Medical tests
… of the fetus. This test can show if the fetus is getting enough oxygen and nutrients. Doppler ultrasound may be used … midnight before the test. Or you may be asked to drink water right before the test so that your bladder is full. … may be done before and after exercise, if you are healthy enough. Veins in the arms and legs For this test, you will …
